This study aimed to identify the relationship between the attitudes toward doping, sport orientation, and perceived motivational climate in sport, and to provide useful information on the anti-doping strategy. Methods: A total of 567 athletes in 21 sports completed four questionnaires Performance Enhancement Attitude Scale (PEAS), Sport Orientation Questionnaire (SOQ; competitiveness orientation, win orientation, goal orientation), Task and Ego Orientation in Sport Questionnaire (TEOSQ; task orientation, ego orientation), and Perceived Motivational Climate in Sport Questionnaire-2 (PMCSQ-2; ego-involving and task-involving climates). They were divided into four categories: speed/power (n=201), endurance (n=154), motor skill (n=119), and team (n=93). We identified the difference of variables among four categories and verified possible factors significantly associated with attitudes toward doping. Results: The PEAS of athletes in both speed/power sports and Team sports was higher than motor skill sports, and the team sports athletes also showed higher PEAS than endurance sports athletes. In speed/power sports, the task of TEOSQ and the win of SOQ were related to PEAS, and in endurance sports, the task of TEOSQ and the ego-involving of PMCSQ were related to PEAS. In motor skill sports and Team sports, the task-involving of PMCSQ and the goal of SOQ were associated with PEAS, respectively.
Conclusion:The results of this study provided new insights into the psychosocial mechanisms of attitudes toward doping, and it would contribute significantly to effective anti-doping strategies based on sports characteristics.